120 lines
4.0 KiB
Python
120 lines
4.0 KiB
Python
#
|
|
# Copyright (c) 2018 Bobby Noelte
|
|
#
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
|
|
from copy import deepcopy
|
|
|
|
from extract.globals import *
|
|
from extract.directive import DTDirective
|
|
|
|
##
|
|
# @brief Manage reg directive.
|
|
#
|
|
class DTReg(DTDirective):
|
|
##
|
|
# @brief Extract reg directive info
|
|
#
|
|
# @param node_path Path to node owning the
|
|
# reg definition.
|
|
# @param names (unused)
|
|
# @param def_label Define label string of node owning the
|
|
# compatible definition.
|
|
#
|
|
def extract(self, node_path, names, def_label, div):
|
|
binding = get_binding(node_path)
|
|
|
|
reg = reduced[node_path]['props']['reg']
|
|
if type(reg) is not list: reg = [ reg, ]
|
|
|
|
(nr_address_cells, nr_size_cells) = get_addr_size_cells(node_path)
|
|
|
|
if 'parent' in binding:
|
|
bus = binding['parent']['bus']
|
|
if bus == 'spi':
|
|
cs_gpios = None
|
|
|
|
try:
|
|
cs_gpios = deepcopy(find_parent_prop(node_path, 'cs-gpios'))
|
|
except:
|
|
pass
|
|
|
|
if cs_gpios:
|
|
extract_controller(node_path, "cs-gpios", cs_gpios, reg[0], def_label, "cs-gpio", True)
|
|
extract_cells(node_path, "cs-gpios", cs_gpios, None, reg[0], def_label, "cs-gpio", True)
|
|
|
|
# generate defines
|
|
l_base = [def_label]
|
|
l_addr = [str_to_label("BASE_ADDRESS")]
|
|
l_size = ["SIZE"]
|
|
|
|
index = 0
|
|
props = list(reg)
|
|
|
|
while props:
|
|
prop_def = {}
|
|
prop_alias = {}
|
|
addr = 0
|
|
size = 0
|
|
# Check is defined should be indexed (_0, _1)
|
|
if index == 0 and len(props) < 3:
|
|
# 1 element (len 2) or no element (len 0) in props
|
|
l_idx = []
|
|
else:
|
|
l_idx = [str(index)]
|
|
|
|
try:
|
|
name = [names.pop(0).upper()]
|
|
except:
|
|
name = []
|
|
|
|
for x in range(nr_address_cells):
|
|
addr += props.pop(0) << (32 * (nr_address_cells - x - 1))
|
|
for x in range(nr_size_cells):
|
|
size += props.pop(0) << (32 * (nr_size_cells - x - 1))
|
|
|
|
addr += translate_addr(addr, node_path,
|
|
nr_address_cells, nr_size_cells)
|
|
|
|
l_addr_fqn = '_'.join(l_base + l_addr + l_idx)
|
|
l_size_fqn = '_'.join(l_base + l_size + l_idx)
|
|
if nr_address_cells:
|
|
prop_def[l_addr_fqn] = hex(addr)
|
|
add_compat_alias(node_path, '_'.join(l_addr + l_idx), l_addr_fqn, prop_alias)
|
|
if nr_size_cells:
|
|
prop_def[l_size_fqn] = int(size / div)
|
|
add_compat_alias(node_path, '_'.join(l_size + l_idx), l_size_fqn, prop_alias)
|
|
if len(name):
|
|
if nr_address_cells:
|
|
prop_alias['_'.join(l_base + name + l_addr)] = l_addr_fqn
|
|
add_compat_alias(node_path, '_'.join(name + l_addr), l_addr_fqn, prop_alias)
|
|
if nr_size_cells:
|
|
prop_alias['_'.join(l_base + name + l_size)] = l_size_fqn
|
|
add_compat_alias(node_path, '_'.join(name + l_size), l_size_fqn, prop_alias)
|
|
|
|
# generate defs for node aliases
|
|
if node_path in aliases:
|
|
add_prop_aliases(
|
|
node_path,
|
|
lambda alias:
|
|
'_'.join([str_to_label(alias)] + l_addr + l_idx),
|
|
l_addr_fqn,
|
|
prop_alias)
|
|
if nr_size_cells:
|
|
add_prop_aliases(
|
|
node_path,
|
|
lambda alias:
|
|
'_'.join([str_to_label(alias)] + l_size + l_idx),
|
|
l_size_fqn,
|
|
prop_alias)
|
|
|
|
insert_defs(node_path, prop_def, prop_alias)
|
|
|
|
# increment index for definition creation
|
|
index += 1
|
|
|
|
##
|
|
# @brief Management information for registers.
|
|
reg = DTReg()
|